Tire tread and buttress



FIG. 1 is a perspective view of a tire tread and buttress showing our new design, it being understood that the pattern is repeated throughout the circumference of the tread and buttress, the opposite side being substantially the same as that shown;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof on a reduced scale; and,

FIG. 4 is an enlarged fragementary front elevational view thereof.

The broken line showing of the tire sidewall in FIGS. 1 and 3 of the drawing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tire tread and buttress, as shown and described. 